87131240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311183}}^1$

素因数の和:311201

約数の個数: 32

約数和(自身を含む): 224052480

約数和(自身を除く): 136921240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311183, 622366, 1244732, 1555915, 2178281, 2489464, 3111830, 4356562, 6223660, 8713124, 10891405, 12447320, 17426248, 21782810, 43565620, 87131240]

約数ペア:

[(1, 87131240), (2, 43565620), (4, 21782810), (5, 17426248), (7, 12447320), (8, 10891405), (10, 8713124), (14, 6223660), (20, 4356562), (28, 3111830), (35, 2489464), (40, 2178281), (56, 1555915), (70, 1244732), (140, 622366), (280, 311183)]